Analysis of prestressed concrete slab-and-beam structures

Sapountzakis, EJ; Katsikadelis, JT

dc.contributor.author	Sapountzakis, EJ	en
dc.contributor.author	Katsikadelis, JT	en
dc.date.accessioned	2014-03-01T01:16:09Z
dc.date.available	2014-03-01T01:16:09Z
dc.date.issued	2001	en
dc.identifier.issn	0178-7675	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13948
dc.subject	Prestressed Concrete	en
dc.subject	Shear Force	en
dc.subject	Time Dependent	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.subject.other	Beams and girders	en
dc.subject.other	Casting	en
dc.subject.other	Concrete slabs	en
dc.subject.other	Creep	en
dc.subject.other	Deflection (structures)	en
dc.subject.other	Interfaces (materials)	en
dc.subject.other	Iterative methods	en
dc.subject.other	Partial differential equations	en
dc.subject.other	Plates (structural components)	en
dc.subject.other	Shear strength	en
dc.subject.other	Shrinkage	en
dc.subject.other	Structural design	en
dc.subject.other	Analog equation method	en
dc.subject.other	Prestressed concrete structures	en
dc.subject.other	Mathematical models	en
dc.title	Analysis of prestressed concrete slab-and-beam structures	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s004660100260	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s004660100260	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	In this paper a solution to the problem of prestressed concrete slab-and-beam structures including creep and shrinkage effect is presented. The adopted model takes into account the resulting inplane forces and deformations of the plate as well as the axial forces and deformations of the beam, due to combined response of the system. The analysis consists in isolating the beams from the plate by sections parallel to the lower outer surface of the plate. The forces at the interface, which produce lateral deflection and inplane deformation to the plate and lateral deflection and axial deformation to the beam, are established using continuity conditions at the interface. The influence of creep and shrinkage effect relative with the time of the casting and the time of the loading of the plate and the beams is taken into account. The estimation of the prestressing axial force of the beams is accomplished iteratively. Both instant (e.g. friction, slip of anchorage) and time dependent losses are encountered. The solution of the arising plate and beam problems, which are nonlinearly coupled, is achieved using the analog equation method (AEM). The adopted model, compared with those ignoring the inplane forces and deformations, describes better the actual response of the plate-beams system and permits the evaluation of the shear forces at the interfaces, the knowledge of which is very important in the design of prefabricated ribbed plates.	en
heal.publisher	SPRINGER-VERLAG	en
heal.journalName	Computational Mechanics	en
dc.identifier.doi	10.1007/s004660100260	en
dc.identifier.isi	ISI:000171239400005	en
dc.identifier.volume	27	en
dc.identifier.issue	6	en
dc.identifier.spage	492	en
dc.identifier.epage	503	en